What's on your mug?

To re-evaluate one's position, and or actions

You better check yourself.

By Saiko

Jizz or the act of jizzing (masturbation).

"You were in the bathroom for thirty minutes, what were you doing in there?" "I was checking; i found this great new site."

By snipesndangles

Means its all good or im ayt

Hows shit man. Yeh its on check sup. Nutin im on check

By Prec1ou$$$

In chess, to threaten capture of the opposing king.

Queen to king's rook 5, check.

By Doc Sigma

A coded word that brings attention to the fact that someone in the vicinity is making a move on the opposite sex (without being obvious). The move being made may be overt, subtle, physical, flirting etc. Checks are usually done to embarrass the parties involved. Advanced users may make a more complex coding system such as check-plus, check-minus, j-check, s-check etc which may be user defined.

When Jay saw Frank talking up the hot new professor, he shouted, "Check!"

By Dr-acula